The Human Extermination Code is an extremely powerful piece of technology perfected by Authority, with this Code he was able to use the V-Net to effectively activate every military-weapon on Earth and turn them against their creators: the ultimate goal of this was nothing less than the extinction of the human race.

Authority's reasons behind creating this weapon of mass destruction were ultimately down to his unreasoning hatred of Adam Man, a powerful and deadly artificial life-form that has taken to "converting" humans into clones of himself: by rending humanity extinct Authority aimed to strike a hateful blow at his enemy by denying him resources for his plans.

Ultimately the Human Extermination Code was stopped by SIM and this eventful battle was shown in Operation: SIM.